To have characters in common with two genera or families, so as to form a connecting link between them; to interosculate
have at least three points in common with; "one curve osculates the other"; "these two surfaces osculate" be intermediate between two taxonomic groups; "These species osculate
touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc ; "The newly married couple kissed"; "She kissed her grandfather on the forehead when she entered the room"
The contact of one curve with another, when the number of consecutive points of the latter through which the former passes suffices for the complete determination of the former curve
[ 'äs-ky&-"lAt ] (transitive verb.) circa 1656. Latin osculatus, past participle of osculari, from osculum kiss, from diminutive of os mouth; more at ORAL.